Transactions of Materials and Heat Treatment

Title：Optimization on extrusion mold for large hollow aluminum profile based on HyperXtrude

Authors： Wang Hongding1 He Kaibo1 Liu Hong1 Yao Yacheng1 Li Zhengning2

Unit： 1.School of Mechanical Engineering Lanzhou Jiaotong University 2.School of Materials Science and Engineering Lanzhou Jiaotong University

KeyWords： extrusion mold aluminum alloy profile metal flow velocity mold optimization HyperXtrude

ClassificationCode：TG76

year,vol(issue):pagenumber：2023,48(8):194-201

Abstract：

Extrusion molds play a key role in the production of aluminum profiles, and reasonable mold design is essential for extruding high-quality aluminum profiles. Therefore, for the large hollow aluminum profiles extruded by split-flow combined mold, the process characteristics of the profiles were analyzed, and the 3D model of the extrusion mold was established. Then, the extrusion process of aluminum profiles was numerically simulated by using software HyperXtrude based on Arbitrary Lagrange-Euler (ALE) algorithm, and aiming at the problem of serious uneven metal flow velocity in the initial mold simulation, two times of optimization (the modification of choke block structure and the adjustment of height) were designed to correct the extrusion mold for aluminum profile. The results show that the optimized extrusion mold extrudes the aluminum alloy profiles with uniform flow velocity and basically no deformation, which effectively solves the problem of uneven metal flow velocity caused by unreasonable initial mold design.

Funds：

甘肃省自然科学基金资助项目（1606RJZA013,20JR10RA266）

作者简介：王鸿鼎（1983-），男，博士，副教授,E-mail：wanghd@lzjtu.edu.cn

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